JPS56119111A - Collimator - Google Patents

Collimator

Info

Publication number
JPS56119111A
JPS56119111A JP2197180A JP2197180A JPS56119111A JP S56119111 A JPS56119111 A JP S56119111A JP 2197180 A JP2197180 A JP 2197180A JP 2197180 A JP2197180 A JP 2197180A JP S56119111 A JPS56119111 A JP S56119111A
Authority
JP
Japan
Prior art keywords
light
light source
lens system
reflective mirror
curved surface
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP2197180A
Other languages
Japanese (ja)
Inventor
Masami Emoto
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ricoh Co Ltd
Original Assignee
Ricoh Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ricoh Co Ltd filed Critical Ricoh Co Ltd
Priority to JP2197180A priority Critical patent/JPS56119111A/en
Publication of JPS56119111A publication Critical patent/JPS56119111A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B19/00—Condensers, e.g. light collectors or similar non-imaging optics
    • G02B19/0004—Condensers, e.g. light collectors or similar non-imaging optics characterised by the optical means employed
    • G02B19/0028—Condensers, e.g. light collectors or similar non-imaging optics characterised by the optical means employed refractive and reflective surfaces, e.g. non-imaging catadioptric systems
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B19/00—Condensers, e.g. light collectors or similar non-imaging optics
    • G02B19/0033—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use
    • G02B19/0047—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use for use with a light source
    • G02B19/0061—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use for use with a light source the light source comprising a LED

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Lenses (AREA)

Abstract

PURPOSE:To utilize emitted energy efficiently even if a solid light emitting element which has no sufficient directivity and a small light emission diameter is used as a light source, by using a reflective mirror having a secondary rotary curved surface. CONSTITUTION:At the focal position of the secondary curve of reflective mirror 10 having a reflecting surface forming a secondary rotary curved surface, such as a rotary elliptical surface, light source 11 consisting of a solid light emitting element such as LED is placed and lens system 12 which makes part of light reflected by reflective mirror 10 ammong light radiated from light source 11 into a parallel beam can be provided to collimate the light with high efficiency. Further, while a parabolic surface is used as the secondary curved surface, lens system 13 which focuses parallel light from it may be provided, and lens system 14 may also be provided in order to utilize the front-surface radiated light of the light source as well.
JP2197180A 1980-02-23 1980-02-23 Collimator Pending JPS56119111A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2197180A JPS56119111A (en) 1980-02-23 1980-02-23 Collimator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2197180A JPS56119111A (en) 1980-02-23 1980-02-23 Collimator

Publications (1)

Publication Number Publication Date
JPS56119111A true JPS56119111A (en) 1981-09-18

Family

ID=12069918

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2197180A Pending JPS56119111A (en) 1980-02-23 1980-02-23 Collimator

Country Status (1)

Country Link
JP (1) JPS56119111A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59143117A (en) * 1983-02-04 1984-08-16 Saibishiya:Kk Condenser
JPS61113012A (en) * 1984-11-07 1986-05-30 Asahi Optical Co Ltd Lighting optical device for optical fiber
DE10064233C1 (en) * 2000-12-22 2002-05-29 Xetos Ag Optical system consists of a reflector with a parabolic surface, a collector lens, and primary and secondary openings

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59143117A (en) * 1983-02-04 1984-08-16 Saibishiya:Kk Condenser
JPS61113012A (en) * 1984-11-07 1986-05-30 Asahi Optical Co Ltd Lighting optical device for optical fiber
DE10064233C1 (en) * 2000-12-22 2002-05-29 Xetos Ag Optical system consists of a reflector with a parabolic surface, a collector lens, and primary and secondary openings

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